This undated booking photo provided by the Tippecanoe County Jail shows Cody Cousins, who faces preliminary charges of murder for the shooting death of Andrew Boldt, a 21-year-old Purdue University student from West Bend, Wis., inside the school's Electrical Engineering Building, on Tuesday, Jan. 21, 2014. (AP Photo/Tippecanoe County Jail)

The Indiana Department of Correction said 24-year-old Cody Cousins was pronounced dead about 30 minutes after being found unresponsive Tuesday night at the Indiana State Prison with self-inflicted lacerations to his neck and arms. (AP)